Concentrator.



No. 800,293. PATENTED SEPT. 26, 1905. S. L. HAGUE.

OONGENTRATOR.

APPLICATION FIL EDAUG. 15,1904.

SNYDER L. HAGUE, oE SALT LAKE OITY, U'IAH.

CONCENT RATOR.

Specification of Letters Patent.

Patented Sept. 26, 1905.

Application filed .August 15, 1904. Serial N0. 220,860-

To all whom it may concern: I

Be it known that I, SNYDER L. HAGUE, a citizen of the United States, residing at Salt Lake City, in the county'of Salt Lake and State of Utah, have invented certain new and useful Improvements in Concentrators; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in theart to which it appertains' to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon,which form a part of this specification.

This-is a device forseparating from the dlings to similar treatment until the values are practically all secured.

The first cost of my concentrating plant is very small, and the expense of maintaining the plant is merely nominal, While the cost of operating the device is practically nothing.

The mechanism employed in applying the principle of myinvention consists in the main of a serpentiform tub e or'spout through which the ore is passed after being ground to a fineness that will release the metallic values from the gangue. The sides ofthe spout by preference gradually converge from its upper to its lower end, and the spout curves from right to left and from left to right again, preferably throughout its entire length. The spout inclines downwardly, and its bottom is transversely curved, with its concave side up, the

depth of thecurve increasing from near its wider to its narrower end. The spout is placed on an incline with the wider end above,

the incline being such as to allow the pulver' ized ore to pass' down by its own weight. The inclination of the spout can be regulated to secure any desired speed in the passing of the ore. This will depend on the fineness to which the ore has beengrou-nd or the nature of the ore and the moisture it contains. The

device can be operated with or without water, and in either case no power beyond the force of gravity is required. An automatic feeding device is desirable, and this may be operated by any preferred means.

The letter A designates the spout.

The accompanying drawings illustrate a form of the device which embodies the spirit of my invention and in which I prefer to make it. V i

In the drawings, Figure 1 is a sideelevatio ofa spout in operative position and the upper end of another spout in connectionwith it. Fig. 2 is a plan view of the same. Fig. 3 is an enlarged side elevation of'a trap. Fig. 4: is an enlarged cross-section on line a." w of Fig. 2. Fig. 5 is an enlarged cross-section on line y y of Fig. 2. Fig. 6 is an enlarged cross-section on line 2 2 of Fig. 2.

The various features of the device are referred to by letters, similar letters denoting corresponding parts in the several views.

It has the lateral curves at a and the concave bottom B. This spout is held in an inclined position by vertically-adjustable supports C C, having spout-seats 0 c. The bottom a of the extreme upper end of the spout A is upwardly convex, being slightly rounded over from side to side, and is provided with shallow radial corrugations a to spread out the ore over the bottom as it comes from the hopper I. ,There is provided at the lower end of each spout any preferred means for separating the materials according-to their values at that point. These means may form a part of the spout itself or be attached thereto, as shown in the drawings,

- where a second spoutD, having a depending open pipe, is adjustably held to spout A by a set-screw (Z. By this second spout D the concentrates or middlings are drawn ofl' through openings f and g and conducted through pipes to the concentrate-bin E and into other spouts, as desired. The spout A is similar to the. spout A, and any desired number of these spouts may be arranged in series, the concentrates being trapped out and the middlings goinginto the next spout below and the gangue being finally directed to the dump.

The downward curvature of the bottom of the spout is irregular, its deepest part. or channel "not being at all points in the middle of the spout, but being nearer the outer side at each lateral curve a. By this construction the outer side a 'of the bottom is narrower and steeper than the inner side a* at each portions by their greater specific gravity will by the same natural law seek and pass along down the channel a of the bottom, so as to be easily trapped out at the lower end of the spout.

The device is operated as follows: The pulverized ore is automatically fed from the hopper I into the upper end of the spout, where as it starts down the decline it is spread out into a thin sheet or film across the bottom of the spout. Following the lateral curvings of the spout it goes from side to side, having almost the same movement it would have in panning. The metallic particles quickly sink to the bottom of the ore and will not rise again through the lighter layer of gangue. This process continues through the entire length of the spout, the concentrates being there drawn off, as already described.

Having now described my invention. what I claim is 1. A concentrator for ores comprising aserpentiform spout having lateral curvatures and converging sides.

2. A concentrator for ores comprising an inclined spout having lateral curvatures, converging sides, and a bottom having a down- Ward, transverse, irregular curvature, as herein set forth.

3. In a concentrator having an inclined spout with lateral curvatures and converging sides, the bottom of said spout having a downward, transverse curvature and a channel along said bottom which is nearer the outer than the inner side of said spout in said lateral curvatures, as specified.

4. In a concentrator for ores a spout having lateral curvatures and converging sides, a bottom in said spout having a downward, transverse curvature, a channel along said bottom, and an area of said bottom in said lateral curvatures between said channel and the inner side of the spout having less inclination, in cross-section, than the area of said bottom between said channel and the outer side of the spout, substantially as described.

5. In a gravity-concentrator for ores having an inclined spout a short portion of the upper end of said spout having an upwardlyconvex bottom with radial corrugations thereon, for the purpose specilied.

6. A gravity ore-concentrator comprising a spout having converging sides, lateral curvatures and a bottom with a downward transverse curvature, and a second spout attached to the first spout having a depending open pipe in its bottom, substantially as herein set forth.

In testimony whereof I afiix my signature in presence of two witnesses.

SNYDER L. HAGUE.

Witnesses:

MA BELLE PIPER, O. A. N EALE. 

